<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>智慧教师 - 教学工具平台</title>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css">
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --secondary: #0ea5e9;
            --light: #f0f9ff;
            --dark: #1e293b;
            --gray: #64748b;
            --success: #22c55e;
            --warning: #f59e0b;
            --card-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
        }
        
        body {
            background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
            color: var(--dark);
            min-height: 100vh;
            padding-bottom: 80px;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* 导航栏样式 */
        header {
            background: white;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
        }
        
        .logo i {
            font-size: 2.2rem;
        }
        
        .nav-links {
            display: flex;
            gap: 30px;
        }
        
        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 500;
            font-size: 1.1rem;
            position: relative;
            transition: all 0.3s ease;
        }
        
        .nav-links a:hover {
            color: var(--primary);
        }
        
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            transition: width 0.3s ease;
        }
        
        .nav-links a:hover::after {
            width: 100%;
        }
        
        .user-actions {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        
        .notification {
            position: relative;
            cursor: pointer;
            font-size: 1.3rem;
            color: var(--gray);
        }
        
        .notification-badge {
            position: absolute;
            top: -5px;
            right: -5px;
            background: var(--warning);
            color: white;
            border-radius: 50%;
            width: 18px;
            height: 18px;
            font-size: 0.7rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .user-profile {
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
        }
        
        .avatar {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: linear-gradient(45deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
            font-size: 1.1rem;
        }
        
        /* 英雄区域样式 */
        .hero {
            display: flex;
            align-items: center;
            padding: 60px 0;
            gap: 50px;
        }
        
        .hero-content {
            flex: 1;
        }
        
        .hero h1 {
            font-size: 3.5rem;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--dark);
        }
        
        .hero h1 span {
            color: var(--primary);
            position: relative;
        }
        
        .hero h1 span::after {
            content: '';
            position: absolute;
            bottom: 10px;
            left: 0;
            width: 100%;
            height: 15px;
            background: rgba(37, 99, 235, 0.2);
            z-index: -1;
        }
        
        .hero p {
            font-size: 1.3rem;
            color: var(--gray);
            margin-bottom: 30px;
            line-height: 1.6;
        }
        
        .cta-button {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 14px 32px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
        }
        
        .cta-button:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.4);
        }
        
        .hero-image {
            flex: 1;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .hero-image-placeholder {
            width: 100%;
            height: 400px;
            background: linear-gradient(45deg, #dbeafe, #bfdbfe);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--card-shadow);
            position: relative;
            overflow: hidden;
        }
        
        .hero-image-placeholder::before {
            content: '';
            position: absolute;
            width: 150%;
            height: 150%;
            background: radial-gradient(circle, transparent 20%, white 70%);
            animation: rotate 25s linear infinite;
        }
        
        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }
        
        .hero-image-placeholder i {
            font-size: 8rem;
            color: var(--primary);
            z-index: 1;
        }
        
        /* 工具卡片区域 */
        .section-title {
            text-align: center;
            margin: 60px 0 40px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            color: var(--dark);
            margin-bottom: 15px;
        }
        
        .section-title p {
            font-size: 1.2rem;
            color: var(--gray);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }
        
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 30px;
        }
        
        .tool-card {
            background: white;
            border-radius: 16px;
            padding: 30px;
            box-shadow: var(--card-shadow);
            transition: all 0.3s ease;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            border: 1px solid #e2e8f0;
        }
        
        .tool-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .tool-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 5px;
            height: 100%;
            background: var(--primary);
        }
        
        .tool-icon {
            width: 70px;
            height: 70px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            font-size: 2rem;
            color: white;
        }
        
        .tool-card:nth-child(1) .tool-icon { background: linear-gradient(45deg, #3b82f6, #60a5fa); }
        .tool-card:nth-child(2) .tool-icon { background: linear-gradient(45deg, #ef4444, #f87171); }
        .tool-card:nth-child(3) .tool-icon { background: linear-gradient(45deg, #10b981, #34d399); }
        .tool-card:nth-child(4) .tool-icon { background: linear-gradient(45deg, #f59e0b, #fbbf24); }
        .tool-card:nth-child(5) .tool-icon { background: linear-gradient(45deg, #8b5cf6, #a78bfa); }
        .tool-card:nth-child(6) .tool-icon { background: linear-gradient(45deg, #ec4899, #f472b6); }
        
        .tool-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: var(--dark);
        }
        
        .tool-card p {
            color: var(--gray);
            line-height: 1.6;
            margin-bottom: 20px;
        }
        
        .tool-link {
            display: inline-flex;
            align-items: center;
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            gap: 8px;
            transition: all 0.3s ease;
        }
        
        .tool-link:hover {
            gap: 12px;
        }
        
        /* 快速访问区域 */
        .quick-access {
            background: white;
            border-radius: 16px;
            padding: 40px;
            margin: 60px 0;
            box-shadow: var(--card-shadow);
        }
        
        .quick-access h3 {
            font-size: 1.8rem;
            margin-bottom: 30px;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .quick-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 20px;
        }
        
        .quick-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 15px 20px;
            border-radius: 12px;
            background: var(--light);
            color: var(--dark);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.2s ease;
        }
        
        .quick-link:hover {
            background: var(--primary);
            color: white;
            transform: translateX(5px);
        }
        
        .quick-link i {
            font-size: 1.2rem;
        }
        
        /* 页脚样式 */
        footer {
            background: var(--dark);
            color: white;
            padding: 50px 0 20px;
            margin-top: 80px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            font-size: 1.4rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--primary);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: #cbd5e1;
            text-decoration: none;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .footer-links a:hover {
            color: white;
            gap: 12px;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #334155;
            color: #94a3b8;
            font-size: 0.9rem;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .hero {
                flex-direction: column;
                text-align: center;
            }
            
            .hero h1 {
                font-size: 2.8rem;
            }
            
            .hero p {
                font-size: 1.1rem;
            }
            
            .hero-image-placeholder {
                height: 300px;
            }
            
            .nav-links {
                display: none;
            }
        }
        
        @media (max-width: 768px) {
            .tools-grid {
                grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            }
            
            .hero h1 {
                font-size: 2.3rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .hero-image-placeholder {
                height: 250px;
            }
        }
        
        @media (max-width: 480px) {
            .logo span {
                font-size: 1.5rem;
            }
            
            .hero h1 {
                font-size: 2rem;
            }
            
            .hero-image-placeholder {
                height: 200px;
            }
            
            .tool-card {
                padding: 25px;
            }
        }
    </style>
</head>
<body>
    <!-- 导航栏 -->
    <header>
        <div class="container">
            <div class="navbar">
                <div class="logo">
                    <i class="fas fa-chalkboard-teacher"></i>
                    <span>智慧教师</span>
                </div>
                
                <div class="nav-links">
                    <a href="#" class="active">首页</a>
                    <a href="#">仪表盘</a>
                    <a href="#">资源库</a>
                    <a href="#">消息中心</a>
                    <a href="#">帮助文档</a>
                </div>
                
                <div class="user-actions">
                    <div class="notification">
                        <i class="far fa-bell"></i>
                        <span class="notification-badge">3</span>
                    </div>
                    <div class="user-profile">
                        <div class="avatar">张</div>
                        <span>张老师</span>
                        <i class="fas fa-chevron-down"></i>
                    </div>
                </div>
            </div>
        </div>
    </header>

    <!-- 主内容区域 -->
    <main class="container">
        <!-- 英雄区域 -->
        <section class="hero">
            <div class="hero-content">
                <h1>一站式<span>教学工具平台</span>，让教育工作更高效</h1>
                <p>智慧教师平台整合了教学过程中所需的各种工具，帮助您轻松管理课程、学生、成绩和教学资源，让您有更多时间专注于教学本身。</p>
                <a href="#" class="cta-button">开始使用 <i class="fas fa-arrow-right"></i></a>
            </div>
            <div class="hero-image">
                <div class="hero-image-placeholder">
                    <i class="fas fa-book-open"></i>
                </div>
            </div>
        </section>

        <!-- 工具卡片区域 -->
        <section>
            <div class="section-title">
                <h2>教学工具</h2>
                <p>精选教学工具，满足您日常教学的各种需求</p>
            </div>
            
            <div class="tools-grid">
                <!-- 卡片1 -->
                <div class="tool-card">
                    <div class="tool-icon">
                        <i class="fas fa-user-graduate"></i>
                    </div>
                    <h3>学生管理</h3>
                    <p>管理学生信息、班级分配、出勤记录和联系方式，轻松掌握学生动态。</p>
                    <a href="#" class="tool-link">进入工具 <i class="fas fa-arrow-right"></i></a>
                </div>
                
                <!-- 卡片2 -->
                <div class="tool-card">
                    <div class="tool-icon">
                        <i class="fas fa-clipboard-list"></i>
                    </div>
                    <h3>成绩管理</h3>
                    <p>记录和分析学生成绩，生成成绩报告单，支持多种评分标准和统计图表。</p>
                    <a href="#" class="tool-link">进入工具 <i class="fas fa-arrow-right"></i></a>
                </div>
                
                <!-- 卡片3 -->
                <div class="tool-card">
                    <div class="tool-icon">
                        <i class="fas fa-calendar-alt"></i>
                    </div>
                    <h3>课程安排</h3>
                    <p>创建和管理课程表，设置课程提醒，与同事协调课程安排。</p>
                    <a href="#" class="tool-link">进入工具 <i class="fas fa-arrow-right"></i></a>
                </div>
                
                <!-- 卡片4 -->
                <div class="tool-card">
                    <div class="tool-icon">
                        <i class="fas fa-tasks"></i>
                    </div>
                    <h3>作业管理</h3>
                    <p>布置和收集作业，在线批改，提供反馈，自动跟踪完成情况。</p>
                    <a href="#" class="tool-link">进入工具 <i class="fas fa-arrow-right"></i></a>
                </div>
                
                <!-- 卡片5 -->
                <div class="tool-card">
                    <div class="tool-icon">
                        <i class="fas fa-file-alt"></i>
                    </div>
                    <h3>教案设计</h3>
                    <p>使用模板创建精美教案，管理教学资源，与同事协作共享。</p>
                    <a href="#" class="tool-link">进入工具 <i class="fas fa-arrow-right"></i></a>
                </div>
                
                <!-- 卡片6 -->
                <div class="tool-card">
                    <div class="tool-icon">
                        <i class="fas fa-comments"></i>
                    </div>
                    <h3>家校沟通</h3>
                    <p>与家长保持联系，发布通知，安排会议，分享学生进展。</p>
                    <a href="#" class="tool-link">进入工具 <i class="fas fa-arrow-right"></i></a>
                </div>
            </div>
        </section>

        <!-- 快速访问区域 -->
        <section class="quick-access">
            <h3><i class="fas fa-bolt"></i> 快速访问</h3>
            <div class="quick-links">
                <a href="#" class="quick-link">
                    <i class="fas fa-plus-circle"></i>
                    新建课程
                </a>
                <a href="#" class="quick-link">
                    <i class="fas fa-chart-line"></i>
                    成绩分析
                </a>
                <a href="#" class="quick-link">
                    <i class="fas fa-cloud-download-alt"></i>
                    资源下载
                </a>
                <a href="#" class="quick-link">
                    <i class="fas fa-calendar-check"></i>
                    日程安排
                </a>
                <a href="#" class="quick-link">
                    <i class="fas fa-bullhorn"></i>
                    发布通知
                </a>
                <a href="#" class="quick-link">
                    <i class="fas fa-question-circle"></i>
                    帮助中心
                </a>
            </div>
        </section>
    </main>

    <!-- 页脚 -->
    <footer>
        <div class="container">
            <div class="footer-content">
                <div class="footer-column">
                    <h3>智慧教师</h3>
                    <p style="color: #cbd5e1; line-height: 1.7; margin-top: 15px;">
                        致力于为教育工作者提供高效、便捷的教学工具，让教师专注于最重要的教学工作。
                    </p>
                </div>
                
                <div class="footer-column">
                    <h3>产品功能</h3>
                    <ul class="footer-links">
                        <li><a href="#"><i class="fas fa-angle-right"></i> 学生管理系统</a></li>
                        <li><a href="#"><i class="fas fa-angle-right"></i> 智能成绩分析</a></li>
                        <li><a href="#"><i class="fas fa-angle-right"></i> 课程计划助手</a></li>
                        <li><a href="#"><i class="fas fa-angle-right"></i> 家校沟通平台</a></li>
                    </ul>
                </div>
                
                <div class="footer-column">
                    <h3>资源中心</h3>
                    <ul class="footer-links">
                        <li><a href="#"><i class="fas fa-angle-right"></i> 教学模板</a></li>
                        <li><a href="#"><i class="fas fa-angle-right"></i> 使用教程</a></li>
                        <li><a href="#"><i class="fas fa-angle-right"></i> 案例分享</a></li>
                        <li><a href="#"><i class="fas fa-angle-right"></i> 更新日志</a></li>
                    </ul>
                </div>
                
                <div class="footer-column">
                    <h3>联系我们</h3>
                    <ul class="footer-links">
                        <li><a href="#"><i class="fas fa-envelope"></i> support@edu-tools.com</a></li>
                        <li><a href="#"><i class="fas fa-phone-alt"></i> 400-123-4567</a></li>
                        <li><a href="#"><i class="fab fa-weixin"></i> 微信客服</a></li>
                        <li><a href="#"><i class="fas fa-map-marker-alt"></i> 北京市海淀区教育科技园</a></li>
                    </ul>
                </div>
            </div>
            
            <div class="footer-bottom">
                <p>&copy; 2023 智慧教师平台 版权所有 | 京ICP备12345678号</p>
            </div>
        </div>
    </footer>

    <script>
        // 添加简单的交互效果
        document.addEventListener('DOMContentLoaded', function() {
            // 卡片悬停效果增强
            const cards = document.querySelectorAll('.tool-card');
            cards.forEach(card => {
                card.addEventListener('mouseenter', function() {
                    this.style.transform = 'translateY(-10px)';
                });
                
                card.addEventListener('mouseleave', function() {
                    this.style.transform = 'translateY(0)';
                });
            });
            
            // 快速链接效果
            const quickLinks = document.querySelectorAll('.quick-link');
            quickLinks.forEach(link => {
                link.addEventListener('mouseenter', function() {
                    this.style.transform = 'translateX(5px)';
                });
                
                link.addEventListener('mouseleave', function() {
                    this.style.transform = 'translateX(0)';
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